000 01710nab a2200205 4500
005 20260520000937.0
008 260224s2009 xxu
245 0 0 _aKinetics and dissolution mechanism of an alloy (90%Cu10%Ni) in a concentrated solution of Lithium Bromide
260 _a
_b
_cjul. 2009
270 _a03/08/2010 ; 03/08/2010
300 _a11 p. ; 461-471
520 _aTranscripción del resumen del autor. This paper examines the dissolution process of the alloy (90%Cu10%Ni) in a solution of 50 wt% (11.8 molal) lithium bromide (LiBr) under real operation conditions using the following electrochemical techniques: polarization curves, electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), and electrochemical noise (EN). The importance of the cuprous bromide (CuBr) film in the alloy dissolution process is determined, as well as the role played by the chemical reaction in such dissolution. Here, the behavior of the cell at 45°C in dynamic conditions is analyzed. In these conditions, the film dissolution process is slower, causing the development of a pitting corrosion process. The rate constants are determined, noting that they correspond fairly well to the behavior of the system. The alloy dissolution rate is determined using LPR and EIS. In this regard, both techniques reported very similar results. A kinetically easy reaction in which mass transfer acquires a leading role is the result presented in this analysis.
581 _a7
773 0 _tCorrosion
_g65
942 _cARTICULO
100 1 _aMeza Martinez, E.
_946179
100 1 _aUruchurtu Chavarín, J.
_933061
100 1 _aGenescá Llongueras, J.
_941522
999 _c175692
_d175692